exim4: Exim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow be...
CVE-2025-67896 is fixed in exim4 on 1 platform by DEBIAN-CVE-2025-67896 (version 4.99-7), released December 14, 2025. It is not reported as exploited. Patch Radar priority: Urgent.
Exim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow because database records are cast directly to internal structures without validation.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| exim4 · Debian 14 | 4.99-7 | DEBIAN-CVE-2025-67896 | Dec 14, 2025 |
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